电力系统保护与控制2016，Vol.44Issue(5)：30-35,6.DOI:10.7667/PSPC150870
并网逆变器死区效应消去补偿方法研究
A novel strategy of dead-time elimination and compensation for grid-tied inverters
贾学瑞 1粟时平 1刘桂英 1吕超 1张意1
作者信息
- 1. 智能电网运行与控制湖南省重点实验室 长沙理工大学，湖南 长沙 410004
- 折叠
摘要
Abstract
A novel dead-time elimination and compensation method based on full analysis of the feature of the grid-tied inverter and zero-current clamping phenomenon is presented to eliminate the dead-time effect of grid-tied inverter. The effective switch transistor is chosen according to the direction of grid current in the non-zero current zone and the control strategy is feed-forward compensation in the zero current zone. In comparison with traditional dead-time elimination and compensation methods, the proposed method can better restrain the output distortion in the zero current zone, effectively eliminate the dead-zone effect, reduce THD, and thereby improve grid-connected current quality due to full consideration of zero-current clamping phenomenon. The Matlab/Simulink simulation results demonstrate the effectiveness and validity of the proposed method.关键词
并网逆变器/死区效应/零电流箝位/消去/补偿Key words
grid-tied inverter/dead-time effect/zero-current clamping/elimination/compensation引用本文复制引用
贾学瑞,粟时平,刘桂英,吕超,张意..并网逆变器死区效应消去补偿方法研究[J].电力系统保护与控制,2016,44(5):30-35,6.
